I am new to this concept after having written my own authentication code in
the past.  I'm now trying to get my brain around forms authentication in .net
2.0.  So far I'm finding it extreemly restrictive and difficult to implement.
I've gone through a VWD2005 walkthrough of ...

I need to write a .NET component that will decrypt the data using the
3DES algorithm. The funny thing is that the original encrypted data is
encrypted using the CAPICOM dll w/ 3DES.
I know the .NET 3DES service provider class needs a 128 bit key for

We need to do an integrity test at startup for our application (take .exe
and compute signature and check against the know signature). Does anyone
have info/sample on doing this? I assume we have to have a public key and
somehow append that on the end of the application too?

How to secure the DB username and password that are kept in the settings
part of the Web.config?
Thanks for help!
A

I'm using windows Authentication on an intranet to identify users to the
application. I'm having the following problems:
1. When someone accesses the web site, a logon dialog box shows up.  I
thought if the user is already logged on, this shouldn't happen.  But

I am trying to understand how I can programmatically determine whether I am
allowed to create files in a given directory.
DirectoryInfo.GetAccessControl() returns a DirectorySecurity object:
DirectoryInfo di = new DirectoryInfo(@"c:\MyDir");

I'm using MQ to interop with a Java app, and I want to pass the authenticated
user's KERBEROS ticket in the message headers to allow for single sign-on.  
How do I extract the user's KERBEROS ticket in .Net?
Thanks!

The Permission Viewer (Permview.exe) in 1.1 seems to be removed in 2.0? The
PermCalc.exe (introduced in .NET 2.0) is not the same functionality.
Or is it moved somewhere else but \SDK\Bin\*
/Claus

The defaultCredentialsCache seems to be populated when launching an
application.
My problem is: when impersonating (WindowsIdentity(upnname).Impersonate()),
my credentialscache is not re-populated with the new logon?

I folks,
anyone know how is possible to read a certificate stored in a smart card
with framework 2.0 ?
Thanks for any help an idea

I use the RSA to encrypt file,i get the X.509 certificate public key
,and encrypt the file success.Now i decrypt the file,i need use the
x.509 certificate private key to decrypt the file,but i cant get the
private key.So how can i do this,thanks

Hi all, does anyone know where I can find an example on how to use the
following classes to encrypt/decrypt some text:
AES                                                
AES128                                            

Ok I'm trying to host a small windows forms control in an asp.net page.
The control grabs an image from the clipboard with the click of a button
displays it on the page and then allows the user to upload it via a
websevice.  This works fine on my pc and I have never adjusted any

I have a .Net application wherein I use Membership component for
authentication & authorize. Users can be redirected to an asp application. I
want to authenticate this request and so tried an httphandler which
authenticates the User.

in the online help I found code to encrypt/decrypt XML files. It uses the
namespace
Imports System.Security.Cryptography.Xml
This namespace does not exist, if I paste it into my IDE (2005, 2.0